http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
1 folded sheet (6 pages) : illustrations ; 21 cm.
Not distributed to depository libraries in paper.
No longer available for sale by the Supt. of Docs., U.S. G.P.O.
"There are two ways to protect your family from radon. First, the hard way. Holding your breath."
Also available via Internet from the EPA web site. Address as of 12/26/06: http://www.epa.gov/radon/pubs/rducrsks.html; current access is available via PURL.